![]() But this cannot act as a substitute for emissions reductions. Preserving natural intact forests and promoting responsible use of forests and agro-ecology in partnership with communities has countless co-benefits.IPCC estimates that through afforestation and reduced deforestation, forests can sequester between 0.4 and 5.8 gigatonnes (Gt) of CO2 a year and through sustainable land management policies, soil can sequester between 0.4 and 8.6 GtCO2 a year.However, even in the best-case scenario, major components of the land-based sinks, such as forests and soil, cannot sequester all the carbon we currently emit. Land and the oceans absorb carbon and thus play a key role in the carbon cycle.Most countries do not yet have clear plans on how to achieve net zero by 2050, or in the case of China, by 2060.Of the 192 countries who have signed the UN Framework Convention on Climate Change, 65 have announced national net-zero targets.The other option is to artificially sequester CO2 from the atmosphere and bury it permanently in the ground using carbon removal technologies.To keep emissions “net-net”, countries can either plant trees and restore ecosystems in their territories for sequestering CO2, or increase the carbon offset programme of the world so that trees planted in the homes and habitats of poor countries are accounted in the carbon balance sheet of the rich paying countries.This means carbon dioxide (CO2) emissions must be negated by an equivalent amount of CO2 absorbed or removed by various means.To stay under 2☌, it has to be net zero between 20. ![]() The world must also become a net zero carbon emitter by 2050, the report said.It emerged as a concept in IPCC’s 2018 special report “Global Warming of 1.5☌” (sr1.5), which said global emissions need to be 45 per cent lower than the 2010 levels in 2030 to keep the temperature rise to 1.5☌ above the pre-industrial level. Net zero is not part of the Paris Agreement, an international treaty on climate change, adopted in 2015.Down To Earth and the Centre for Science and Environment, Delhi, have prepared a list of agenda items that must be brought to the table at COP26 to ensure that the world turns a corner on climate crisis at this summit in Glasgow, Scotland.Scientists mince no words while attributing extreme weather events to past greenhouse gas emissions and say this decade is our last chance to stay under 1.5oC, beyond which extreme weather will take hold.The 26 th session of the Conference of the Parties (cop26) to the UN Framework Convention on Climate Change is being held at a time when the impacts of global warming are more palpable than ever-both for the poor and the rich.Download Free PDF – Down to Earth magazine.UPSC Geo Scientist Eligibility Criteria.UPSC EPFO Previous Year Question Papers.
0 Comments
Leave a Reply. |